A lubricating grease composition used for cylinders of electric tools and a preparing method thereof

A technology for grease compositions and power tools, applied in the directions of lubricating compositions, petroleum industry, base materials, etc., can solve the problems of low frequency and working time, inability to adapt to high-speed and high-impact load power tools, etc., and achieve high-temperature evaporation loss. The effect of small size, excellent extreme pressure wear resistance, and excellent shock load resistance

Active Publication Date: 2016-05-18
杭州得润宝油脂股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The applicant's prior applications CN101597539A and CN102604726A, the disclosed grease is mainly used in the occasions of low frequency and short working time, which cannot adapt to high-speed and high-impact load electric tools

Method used

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  • A lubricating grease composition used for cylinders of electric tools and a preparing method thereof
  • A lubricating grease composition used for cylinders of electric tools and a preparing method thereof
  • A lubricating grease composition used for cylinders of electric tools and a preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Heat and stir 51g of 12-hydroxystearic acid, 25g of stearic acid and 115g of alkyl silicone oil (viscosity of 600cSt at 25°C) until dissolved at 90°C, add 11.5g of lithium hydroxide monohydrate dissolved in 9 times of water, and slowly heat up to 160°C For reaction, add 100g of alkyl silicone oil (viscosity is 600cSt25°C), continue to heat up to 210°C for high temperature refining and keep it in the state of true solution for 10 minutes, add 135g of alkyl silicone oil and cool to 70-110°C, add 15g of T351, 10g of HiTEC8799B, mix well, and cool Out of the kettle, homogenized, ground, packaged, and finished.

Embodiment 2

[0055] Mix 22.7g of aluminum isopropoxide, 33.9g of stearic acid and 289.8g of 150BS, heat and stir until dissolved at 120°C, add 11.9g of benzoic acid to react for 10min, cool down to 90-95°C, and add 18.6g of water. Slowly raise the temperature again until the temperature rises to 160° C. after the smell of isopropanol disappears, and add 60.3 g of trimethylolpropane oleate (viscosity is 130 cSt 40° C.). Continue to heat up to 210°C for 10 minutes, then cool to 70-110°C, add 60g of methyl silicone oil (viscosity of 500cSt at 25°C), 11.4g of T351 and 15g of HiTEC8799B, mix evenly, cool out of the kettle, homogenize, grind, pack, and finish.

Embodiment 3

[0057] Heat and stir 27.15g of 4,4'-diphenylmethane diisocyanate and 251.85g of HVI150BS and metallocene PAO150cSt (in a ratio of 7:3) to 70°C for dissolution, then add the above-mentioned HVI150BS and metallocene PAO150cSt (in a ratio of 7:3) 3 ratio) of a mixture of 14.85g octadecylamine and 16.15g cyclohexylamine, slowly warming up to 160-170°C and keeping it for 10min, then cooling to 80°C, adding 15gT351 and 25gHiTEC8799B, mixing evenly, cooling out of the kettle, homogenizing, grinding, Packaging, finished product.

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Abstract

A lubricating grease composition used for cylinders of electric tools is provided. The composition comprises base oil, a thickening agent and functional additives, wherein the base oil is one of or a mixture of at least two substances selected from HVI hydrogenated base oil, metallocene PAO, trimethylolpropane trioleate, alkyl silicone oil or methylphenyl silicone oil, the thickening agent is one of or a mixture of at least two substances selected from lithium soap, composite aluminum soap or polyurea, the functional additives are an extreme pressure antiwear agent, an antioxidant or a rubber compatibility modifier or a mixture thereof, the extreme pressure antiwear agent comprises an organic molybdenum salt and a heavy-load diesel engine oil complexing agent, and the rubber compatibility modifier is dimethyl silicone oil or/and alkyl silicone oil. The lubricating grease prepared with the composition is excellent in impact load resistance, free of loss at high temperature, long in service lifetime and low in high-temperature evaporation loss and can be widely used for cylinders of various electric hammers and electric picks.

Description

technical field [0001] The invention relates to a lubricating grease composition for an electric tool cylinder and a preparation method thereof. Background technique [0002] An electric tool is a hand-held or movable mechanized tool that is powered by an electric motor or an electromagnet and drives the working head through a transmission mechanism. With the rapid development of industrial economy, China has become a big producer and consumer of electric tools. According to incomplete statistics, the annual consumption of lubricating grease in China's electric tool market is about 2,000 tons. However, the technology of electric tool grease products varies from good to bad. Due to the pressure of cost, most private enterprises and joint-stock enterprises have researched and developed lithium-based grease, extreme pressure lithium-based compound grease and other products. These products can be circulated in the market, but their high-temperature performance is poor, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/00C10M105/38C10M107/54C10M163/00C10M177/00C10N50/10C10N30/06C10N30/10C10N30/08
Inventor 白传航李元正杨国庆孙燏娟洪玉倩吴燕珍
Owner 杭州得润宝油脂股份有限公司
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